bool Camera_INDIClass::Capture(int duration, usImage& img, int options, const wxRect& subframeArg)
{
if (Connected) {
bool takeSubframe = UseSubframes;
wxRect subframe(subframeArg);
// we can set the exposure time directly in the camera
if (expose_prop) {
if (Binning != m_curBinning)
{
FullSize = wxSize(m_maxSize.x / Binning, m_maxSize.y / Binning);
binning_x->value = Binning;
binning_y->value = Binning;
sendNewNumber(binning_prop);
m_curBinning = Binning;
}
if (subframe.width <= 0 || subframe.height <= 0)
{
takeSubframe = false;
}
// Program the size
if (!takeSubframe)
{
subframe = wxRect(0, 0, FullSize.GetWidth(), FullSize.GetHeight());
}
if (subframe != m_roi)
{
frame_x->value = subframe.x*Binning;
frame_y->value = subframe.y*Binning;
frame_width->value = subframe.width*Binning;
frame_height->value = subframe.height*Binning;
sendNewNumber(frame_prop);
m_roi = subframe;
}
//printf("Exposing for %d(ms)\n", duration);
// set the exposure time, this immediately start the exposure
expose_prop->np->value = (double)duration/1000;
sendNewNumber(expose_prop);
modal = true; // will be reset when the image blob is received
unsigned long loopwait = duration > 100 ? 10 : 1;
CameraWatchdog watchdog(duration, GetTimeoutMs());
while (modal) {
wxMilliSleep(loopwait);
if (WorkerThread::TerminateRequested())
return true;
if (watchdog.Expired())
{
DisconnectWithAlert(CAPT_FAIL_TIMEOUT);
return true;
}
}
}
// for video camera without exposure time setting
else if (video_prop) {
takeSubframe = false;
//printf("Enabling video capture\n");
ISwitch *v_on = IUFindSwitch(video_prop,"ON");
ISwitch *v_off = IUFindSwitch(video_prop,"OFF");
v_on->s = ISS_ON;
v_off->s = ISS_OFF;
// start capture, every video frame is received as a blob
sendNewSwitch(video_prop);
// wait the required time
wxMilliSleep(duration); // TODO : add the frames received during exposure
//printf("Stop video capture\n");
v_on->s = ISS_OFF;
v_off->s = ISS_ON;
sendNewSwitch(video_prop);
}
else {
return true;
}
//printf("Exposure end\n");
if (strcmp(cam_bp->format, ".fits") == 0) {
//printf("Processing fits file\n");
// for CCD camera
if ( ! ReadFITS(img,takeSubframe,subframe) ) {
if (options & CAPTURE_SUBTRACT_DARK) {
//printf("Subtracting dark\n");
SubtractDark(img);
}
if (options & CAPTURE_RECON) {
if (PixSizeX != PixSizeY) SquarePixels(img, PixSizeX, PixSizeY);
}
return false;
} else {
return true;
}
} else if (strcmp(cam_bp->format, ".stream") == 0) {
//printf("Processing stream file\n");
// for video camera
return ReadStream(img);
} else {
pFrame->Alert(_("Unknown image format: ") + wxString::FromAscii(cam_bp->format));
return true;
}
}
else {
// in case the camera is not connected
return true;
}
// we must never go here
return true;
}
bool Camera_ASCOMLateClass::Capture(int duration, usImage& img, int options, const wxRect& subframeArg)
{
bool retval = false;
bool takeSubframe = UseSubframes;
wxRect subframe(subframeArg);
if (subframe.width <= 0 || subframe.height <= 0)
{
takeSubframe = false;
}
bool binning_changed = false;
if (Binning != m_curBin)
{
FullSize = wxSize(m_maxSize.x / Binning, m_maxSize.y / Binning);
binning_changed = true;
}
// Program the size
if (!takeSubframe)
{
subframe = wxRect(0, 0, FullSize.GetWidth(), FullSize.GetHeight());
}
if (img.Init(FullSize))
{
pFrame->Alert(_("Cannot allocate memory to download image from camera"));
return true;
}
GITObjRef cam(m_gitEntry);
EXCEPINFO excep;
if (binning_changed)
{
if (ASCOM_SetBin(cam.IDisp(), Binning, &excep))
{
pFrame->Alert(_("The ASCOM camera failed to set binning. See the debug log for more information."));
return true;
}
m_curBin = Binning;
}
if (subframe != m_roi)
{
ASCOM_SetROI(cam.IDisp(), subframe, &excep);
m_roi = subframe;
}
bool takeDark = HasShutter && ShutterClosed;
// Start the exposure
if (ASCOM_StartExposure(cam.IDisp(), (double)duration / 1000.0, takeDark, &excep))
{
Debug.AddLine(ExcepMsg("ASCOM_StartExposure failed", excep));
pFrame->Alert(ExcepMsg(_("ASCOM error -- Cannot start exposure with given parameters"), excep));
return true;
}
CameraWatchdog watchdog(duration, GetTimeoutMs());
if (duration > 100)
{
// wait until near end of exposure
if (WorkerThread::MilliSleep(duration - 100, WorkerThread::INT_ANY) &&
(WorkerThread::TerminateRequested() || AbortExposure()))
{
return true;
}
}
while (true) // wait for image to finish and d/l
{
wxMilliSleep(20);
bool ready;
EXCEPINFO excep;
if (ASCOM_ImageReady(cam.IDisp(), &ready, &excep))
{
Debug.AddLine(ExcepMsg("ASCOM_ImageReady failed", excep));
pFrame->Alert(ExcepMsg(_("Exception thrown polling camera"), excep));
return true;
}
if (ready)
break;
if (WorkerThread::InterruptRequested() &&
(WorkerThread::TerminateRequested() || AbortExposure()))
{
return true;
}
if (watchdog.Expired())
{
DisconnectWithAlert(CAPT_FAIL_TIMEOUT);
return true;
}
}
// Get the image
if (ASCOM_Image(cam.IDisp(), img, takeSubframe, subframe, &excep))
{
Debug.AddLine(ExcepMsg(_T("ASCOM_Image failed"), excep));
pFrame->Alert(ExcepMsg(_("Error reading image"), excep));
return true;
}
if (options & CAPTURE_SUBTRACT_DARK)
SubtractDark(img);
if (Color && Binning == 1 && (options & CAPTURE_RECON))
QuickLRecon(img);
return false;
}
